Games like Space Saga
Games like Space Saga include Starfield, Stellaris, Mount & Blade II: Bannerlord, FTL: Faster Than Light, and Starpoint Gemini Warlords. We matched them by the tags players give Space Saga on Steam (Strategy, Space, Sci-fi, RPG, and Singleplayer): closest matches first, and among equally close ones the better-known games.
Starfield
Shared: Space · RPG · Sci-fi
Stellaris
Shared: Strategy · Space · Sci-fi
Mount & Blade II: Bannerlord
Shared: Strategy · RPG · Singleplayer
FTL: Faster Than Light
Shared: Space · Strategy · Sci-fi
Starpoint Gemini Warlords
Shared: Space · Strategy · RPG
Rebel Galaxy
Shared: Space · Sci-fi · RPG
No Man's Sky
Shared: Space · Sci-fi · Singleplayer
Space Rangers HD: A War Apart
Shared: Space · Strategy · RPG
鬼谷八荒 Tale of Immortal
Shared: Singleplayer · RPG · Management
The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Strategy · Singleplayer
Between the Stars
Shared: Space · RPG · Strategy
STAR WARS Jedi: Survivor™
Shared: Singleplayer · Sci-fi · Space
Space Pirates And Zombies 2
Shared: Strategy · Space · RPG
SPORE™ Galactic Adventures
Shared: Space · Strategy · Singleplayer
Space Pirates and Zombies
Shared: Space · Sci-fi · Strategy
Dyson Sphere Program
Shared: Space · Sci-fi · Strategy
X4: Foundations
Shared: Space · Strategy · Sci-fi
RimWorld
Shared: Strategy · Singleplayer · Sci-fi
Mount & Blade: Warband
Shared: Strategy · RPG · Sandbox
Endless Sky
Shared: Space · Sci-fi · Singleplayer
Hardspace: Shipbreaker
Shared: Space · Sci-fi · Singleplayer
Fallout 4
Shared: Singleplayer · RPG · Sci-fi
Sands of Salzaar
Shared: Strategy · RPG · Singleplayer
Trailmakers
Shared: Space · Singleplayer · Action-Adventure